Browsing 1941 Onderstepoort Journal of Veterinary Science and Animal Industry, Volume 17, 1941 by Subject "Veterinary medicine -- South Africa"
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Browsing 1941 Onderstepoort Journal of Veterinary Science and Animal Industry, Volume 17, 1941 by Subject "Veterinary medicine -- South Africa"
Now showing items 1-20 of 23
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(Published by The Government Printer, Pretoria, 1941)After giving a description of two instances of cervical ribs in bovines, these cases are considered in the light of various theories that have been advanced in explanation of such anomalies. It is concluded that both of ...
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(Published by The Government Printer, Pretoria, 1941)
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(Published by The Government Printer, Pretoria, 1941)The available literature is reviewed and where possible conclusions are drawn. References are listed which deal either directly or indirectly with the question of Pregnancy Disease of sheep.
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(Published by The Government Printer, Pretoria, 1941)Undoubted cases of Domsiekte have been produced by suddenly cutting the ration of good conditioned heavily pregnant ewes. An identical condition has been set up in non-pregnant ewes but a much longer period on the poor ...
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(Pretoria : The Government Printer, 1941)1. The temperature of the scrotal surface has been recorded at various air-temperatures within the range 10°C. to 40°C. (50°F. to 104°F.). 2. At low air-temperatures (10°C. to 25°C.) the temperature on areas I, II, and ...
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(Published by The Government Printer, Pretoria, 1941)
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(Pretoria : The Government Printer, 1941)(1) The pH of the vaginal secretion of mature merino ewes, measured during oestrus, gave a mean value of 6·648, with a range of 5·85 to 7·40. During mid-dioestrus the mean value was 6·694, with a range of 6·00 to 7·60. ...
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(Pretoria : The Government Printer, 1941)(1) Ten female native goats were mated to, or artificially inseminated with semen from a number of highly fertile sheep-rams during four breeding seasons. (2) There was great difficulty in obtaining fertilisation, but ...
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(Published by The Government Printer, Pretoria, 1941)(1) Poisoning by completely spent carbide is very similar to poisoning by calcium hydroxide. (2) So-called spent carbide may contain active carbide which, when ingested (moistened), will yield acetylene. Furthermore, other ...
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(Published by The Government Printer, Pretoria, 1941)
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(Published by The Government Printer, Pretoria, 1941)The ferret fits in immediately with its new environment as regards its sexual cycle, when taken from the northern to the southern hemisphere. The animals that were in anoestrum in England started breeding shortly after ...
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(Published by The Government Printer, Pretoria, 1941)The toxicity of fourteen plants was investigated. According to the available literature the following plants, viz., Mesembryanthemum angulatum Thunb., Kalanchoe rotundifolia Harv. and Urginea rubella Baker have for the ...
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(Pretoria : The Government Printer, 1941)The structural constituents, natural cellulose, hemicelluloses and lignin, in graminaceous food materials, faeces, and the crude fibre isolated from these have been determined. The results showed that: (1) crude fibre ...
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(Pretoria : The Government Printer, 1941)(1) Senecio sceleratus sp. nov. 'Schweickerdt is an extremely toxic Senecio species. It contains at least three more or less toxic alkaloids, viz., isatidine, retrorsine and a new alkaloid, sceleratine, (2) Sceleratine, ...
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(Published by The Government Printer, Pretoria, 1941)The wool production and fleece analysis of 50 extremely plainbodied stud ewes are given. The ewes were typical of the sheep of the stud (including the stud rams) and were obtained from a breeder who had consistently bred ...
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(Published by The Government Printer, Pretoria, 1941)The analysis of the fleece densities of a group of extremely plainbodied stud rams is given. The number of fibres growing per square inch of skin (shoulder) varies from 29,100 to 53,200 with a mean of 40,900. The fleece ...
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(Pretoria : The Government Printer, 1941)(1) A technique is described for the preservation and counting of ruminal infusoria. (2) Reactions of specific infusoria as well as total infusorial populations to changes in the diet of stable fed sheep were ...
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(Pretoria : The Government Printer, 1941)1. The effect of sunlight on sheep artificially photosensitised with eosin and phylloerythrin was investigated. Glass filters were used to ascertain whether any of those rays readily absorbed by these dye-stuffs produced ...
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(Published by The Government Printer, Pretoria, 1941)The tensile strength of the wool grown on six regions on each of eight sheep was determined. Significant differences between the regions were obtained. In all eases the tensile strength of the belly wool was considerably ...
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(Published by The Government Printer, Pretoria, 1941)
Now showing items 1-20 of 23